Wheelchair lower limb contraction supporting frame
By designing a wheelchair lower limb retraction support frame, the pain problem caused by excessive flexion and extension of the wheelchair knee joint is solved, and the comfort and recovery effect are improved.
Patent Information
- Application Number
- CN202422631271.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-10-30
AI Technical Summary
Existing wheelchairs cause pain due to excessive flexion and extension of the knee joint after a patient's knee injury or surgery, which affects recovery time.
A wheelchair lower limb retraction support frame is designed, which includes a support frame, a support plate and an extension plate. It is fixed to the frame through buckles and torsion springs. The support plate and the extension plate are slidably connected and equipped with soft pads to support the patient's legs and prevent knee bending.
It effectively avoids knee bending, improves patient comfort and recovery effect, reduces pain and shortens recovery time.
Smart Images

Figure CN223416398U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wheelchairs, in particular to a wheelchair lower limb retractable support frame. Background Art
[0002] A wheelchair is a chair equipped with wheels that can assist with walking. It is an important means of mobility for the injured, sick, and disabled for home rehabilitation, transportation, medical treatment, and activities. Wheelchairs not only meet the mobility needs of the physically disabled and those with limited mobility, but more importantly, they facilitate family members' mobility and care, allowing patients to exercise and participate in social activities.
[0003] However, most wheelchairs currently on the market can only help patients move, and the knee joints are generally bent and placed on support pads. However, when a patient's knee joints are injured or have undergone surgery, excessive flexion and extension of the knee joints while sitting in a wheelchair can cause unbearable pain in the wound, thereby affecting the patient's recovery time. Utility Model Content
[0004] The purpose of the present utility model is to provide a wheelchair lower limb retractable support frame to solve the problems raised by the above background technology.
[0005] To achieve the above objectives, the present invention provides the following technical solutions:
[0006] One is a wheelchair lower limb retraction support frame, comprising:
[0007] A frame, the outer side wall of the frame is fixedly connected to a fixing plate, a support frame is provided on the top of the fixing plate, one end of the support frame is rotatably connected to a buckle, the inner part of the support frame is slidably connected to the support plate, the inner part of the support plate is slidably connected to the extension plate, and the tops of the support plate and the extension plate are both provided with soft pads.
[0008] Preferably, a push handle is provided at one top end of the frame, and a wheel is provided at one bottom end of the frame.
[0009] Preferably, a seat cushion is provided on a side of the frame, and a leg rest is provided at one end of the frame away from the wheel.
[0010] Preferably, two groups of support frames are provided, and the two groups of support frames are axially symmetrically distributed on the top of the fixing plate, and first sliding grooves are provided at the upper and lower ends of the support frames.
[0011] Preferably, a fixing groove is provided at one end of the support frame away from the fixing plate, a fixing column is fixedly connected inside the fixing groove, and a buckle is rotatably connected to the outer side wall of the fixing column.
[0012] Preferably, a torsion spring is provided on the outer side wall of the fixing column, one end of the torsion spring is in contact with one side of the buckle, and the other end of the torsion spring is in contact with the side of the support frame.
[0013] Preferably, the support frame and the vehicle frame are fixed by the torsion spring and the snap fit.
[0014] Preferably, slide plates are fixedly connected to both sides of the support plate, first sliding blocks are fixedly connected to the upper and lower ends of the slide plate, and the first sliding blocks are adapted to the first sliding grooves.
[0015] Preferably, sliding frames are fixedly connected to both sides of the inner wall of the support plate, and second sliding grooves are provided on the sides of the sliding frames.
[0016] Preferably, a handle is fixedly connected to one end of the extension plate, and second sliders are fixedly connected to both sides of the extension plate, and the second sliders are adapted to the second sliding grooves.
[0017] Compared with the prior art, the beneficial effects of the present invention are:
[0018] The utility model is provided with a support frame, a support plate, an extension plate and a buckle. The support frame is fixed to the frame by the buckle, which is convenient for disassembly and installation of the support frame and the frame. The support plate is slidably connected to the inner side of the support frame, and the extension plate is slidably connected to the inner side of the support plate, which is convenient for supporting the patient's legs and avoiding bending of the knee joint to affect the affected part and affect its recovery time. Soft pads are provided on the top of the support plate and the extension plate to improve the comfort of the patient. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0020] Figure 2 This is a schematic diagram of the expanded three-dimensional structure of the support plate of the utility model;
[0021] Figure 3 This is a top anatomical diagram of the present invention;
[0022] Figure 4 This is a schematic diagram of the connection between the support frame, support plate and extension plate of the utility model;
[0023] Figure 5 This is a schematic diagram of the support frame structure of the present utility model;
[0024] Figure 6 Schematic diagram of the support plate structure of the utility model
[0025] Figure 7 This is a schematic diagram of the extension plate structure of the present utility model.
[0026] In the figure: 1. frame; 2. push handle; 3. wheel; 4. seat cushion; 5. fixing plate; 6. leg rest; 7. support frame; 701. first slide groove; 702. fixing groove; 8. support plate; 801. slide plate; 802. first slider; 803. slide frame; 804. second slide groove; 9. extension plate; 901. handle; 902. second slider; 10. cushion; 11. fixing column; 12. torsion spring; 13. buckle. DETAILED DESCRIPTION
[0027] In order to more clearly illustrate the overall concept of the present invention, the following is a detailed description in conjunction with the accompanying drawings.
[0028] Example 1:
[0029] See also Figures 1 to 7 The utility model provides a technical solution: a wheelchair lower limb retractable support frame, comprising:
[0030] The frame 1 has a fixed plate 5 fixedly connected to the outer wall of the frame 1, a support frame 7 is provided on the top of the fixed plate 5, one end of the support frame 7 is rotatably connected to a buckle 13, the interior of the support frame 7 is slidably connected to a support plate 8, the interior of the support plate 8 is slidably connected to an extension plate 9, and a cushion 10 is provided on the top of both the support plate 8 and the extension plate 9.
[0031] By providing the soft pad 10 , the patient's legs are in direct contact with the support plate 8 and the extension plate 9 during use, thus preventing the support plate 8 and the extension plate 9 from being too hard and affecting the recovery effect, while improving the comfort of use.
[0032] Example 2:
[0033] like Figure 2 As shown, the second embodiment of the present invention discloses a wheelchair lower limb retraction support frame, and its structure is basically the same as that of the first embodiment, except that: a push handle 2 is provided at the top end of the frame 1, and a wheel 3 is provided at the bottom end of the frame 1.
[0034] A seat cushion 4 is provided on the side of the frame 1 , and a leg rest 6 is provided at one end of the frame 1 away from the wheel 3 .
[0035] The support frames 7 are provided in two groups, and the two groups of support frames 7 are axially symmetrically distributed on the top of the fixing plate 5 . The first sliding grooves 701 are provided at the upper and lower ends of the support frames 7 .
[0036] A fixing groove 702 is provided at one end of the support frame 7 away from the fixing plate 5 , a fixing column 11 is fixedly connected inside the fixing groove 702 , and a buckle 13 is rotatably connected to the outer side wall of the fixing column 11 .
[0037] A torsion spring 12 is provided on the outer side wall of the fixing column 11 , one end of the torsion spring 12 is in contact with one side of the buckle 13 , and the other end of the torsion spring 12 is in contact with the side of the support frame 7 .
[0038] The support frame 7 and the vehicle frame 1 are fixed together by the torsion spring 12 and the buckle 13 .
[0039] By setting the buckle 13 and the torsion spring 12, the support frame 7 is fixed on the frame 1 through the buckle 13 and the torsion spring 12, which facilitates the disassembly and installation of the support frame 7 and the frame 1.
[0040] Example 3:
[0041] like Figure 2 As shown, the third embodiment of the present invention discloses a wheelchair lower limb retractable support frame, the structure of which is basically the same as that of the second embodiment, except that:
[0042] Slide plates 801 are fixedly connected to both sides of the support plate 8 , and first sliders 802 are fixedly connected to the upper and lower ends of the slide plate 801 , and the first sliders 802 are adapted to the first sliding grooves 701 .
[0043] Sliding frames 803 are fixedly connected to both sides of the inner wall of the support plate 8 , and second sliding grooves 804 are provided on the sides of the sliding frames 803 .
[0044] A handle 901 is fixedly connected to one end of the extension plate 9 , and second sliders 902 are fixedly connected to both sides of the extension plate 9 , and the second sliders 902 are adapted to the second sliding grooves 804 .
[0045] Through the setting of the support plate 8 and the extension plate 9, the support plate 8 is slidably connected to the inner side of the support frame 7, and the extension plate 9 is slidably connected to the inner side of the support plate 8. The support plate 8 and the extension plate 9 are extended and retracted by the handle 901, which is convenient for supporting the patient's legs, avoiding bending of the knee joint and affecting the affected area, affecting its recovery time.
[0046] The specific solution is as follows: first, adjust the deployment angle by pulling the buckle 13, release the buckle 13 after the buckle 13 is in contact with the frame 1, and the elastic force of the torsion spring 12 makes the buckle 13 and the frame 1 fit tightly, and the other end of the support frame 7 is placed on the top of the fixed plate 5 to prevent the support frame 7 from falling. Then, the support plate 8 and the extension plate 9 are extended and retracted by the handle 901 to facilitate supporting the patient's legs, avoid bending the knee joint and affecting the affected area, affecting its recovery time, and through the setting of the soft pad 10, the patient's legs are in direct contact with the support plate 8 and the extension plate 9 when in use, avoiding the support plate 8 and the extension plate 9 being too hard and affecting the recovery effect, while improving the comfort of use.
[0047] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.
[0048] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.
Claims
1. A wheelchair lower limb retractable support frame, characterized in that: include: A vehicle frame (1), wherein the outer side wall of the vehicle frame (1) is fixedly connected to a fixing plate (5), a support frame (7) is provided on the top of the fixing plate (5), one end of the support frame (7) is rotatably connected to a buckle (13), the interior of the support frame (7) is slidably connected to a support plate (8), the interior of the support plate (8) is slidably connected to an extension plate (9), and the tops of the support plate (8) and the extension plate (9) are both provided with soft pads (10).
2. The wheelchair lower limb retractable support frame according to claim 1, characterized in that: A push handle (2) is provided at one top end of the frame (1), and a wheel (3) is provided at one bottom end of the frame (1).
3. The wheelchair lower limb retractable support frame according to claim 2, characterized in that: A seat cushion (4) is provided on the side of the frame (1), and a leg rest (6) is provided at one end of the frame (1) away from the wheel (3).
4. The wheelchair lower limb retractable support frame according to claim 3, characterized in that: Two groups of support frames (7) are provided, and the two groups of support frames (7) are axially symmetrically distributed on the top of the fixed plate (5). First sliding grooves (701) are provided at the upper and lower ends of the support frames (7).
5. The wheelchair lower limb retractable support frame according to claim 4, characterized in that: A fixing groove (702) is provided at one end of the support frame (7) away from the fixing plate (5); a fixing column (11) is fixedly connected inside the fixing groove (702); and a buckle (13) is rotatably connected to the outer side wall of the fixing column (11).
6. The wheelchair lower limb retractable support frame according to claim 5, characterized in that: A torsion spring (12) is provided on the outer side wall of the fixing column (11), one end of the torsion spring (12) is fitted with one side of the buckle (13), and the other end of the torsion spring (12) is fitted with the side of the support frame (7).
7. The wheelchair lower limb retractable support frame according to claim 6, characterized in that: The support frame (7) and the vehicle frame (1) are fixed together by the torsion spring (12) and the buckle (13).
8. The wheelchair lower limb retractable support frame according to claim 7, characterized in that: Slide plates (801) are fixedly connected to both sides of the support plate (8), and first sliders (802) are fixedly connected to the upper and lower ends of the slide plate (801), and the first sliders (802) are adapted to the first slide grooves (701).
9. The wheelchair lower limb retractable support frame according to claim 8, characterized in that: Sliding frames (803) are fixedly connected to both sides of the inner wall of the support plate (8), and second sliding grooves (804) are provided on the sides of the sliding frame (803).
10. The wheelchair lower limb retractable support frame according to claim 9, characterized in that: One end of the extension plate (9) is fixedly connected to a handle (901), and both sides of the extension plate (9) are fixedly connected to second sliders (902), and the second sliders (902) are adapted to the second sliding grooves (804).